Canon PC920 Service Manual page 45

3. Outputs from the DC Controller (1/2)
Line filter
LF1
(220/240V model only)
DS1
Door switch
Fixing heater J16
H1
FU2
Thermal fuse 2
Scanning lamp
LA1
FU1
Thermal fuse 1
Primary charging roller
Developing cylinder
Transfer charging roller
Static eliminator
M1
Main
motor
Main motor
driver PCB
M2
Scanner/
lens drive motor
COPYRIGHT © 1999 CANON INC.
Composite power supply PCB
J201-2
NF1
-1
Noise filter
J434
J207-1
-2
J910-3
-1
High-
voltage
circuit
block
HVT board
+24V
Figure 2-107
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2 BASIC OPERATION
Transformer
Fixing heater
activation circuit
Scanning lamp
activation circuit
Micro-
processor
DC controller PCB
J104-2
HEAT_TRG When '0',
the fixing heater
turns on.
Communication with
the composite power
supply
J103-6
MMD
See p. 2-5.
J104-1
MLOCK
See p. 3-7.
2-9